/*
 * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.java.swing.plaf.motif;

import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.tree.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.io.*;
import java.util.*;

/**
 * Motif rendered to display a tree cell.
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases.  The current serialization support is appropriate
 * for short term storage or RMI between applications running the same
 * version of Swing.  A future release of Swing will provide support for
 * long term persistence.
 *
 * @author Jeff Dinkins
 */
public class MotifTreeCellRenderer extends DefaultTreeCellRenderer {

  static final int LEAF_SIZE = 13;
  static final Icon LEAF_ICON = new IconUIResource(new TreeLeafIcon());

  public MotifTreeCellRenderer() {
    super();
  }

  public static Icon loadLeafIcon() {
    return LEAF_ICON;
  }

  /**
   * Icon for a node with no children.
   * <p>
   * <strong>Warning:</strong>
   * Serialized objects of this class will not be compatible with
   * future Swing releases.  The current serialization support is appropriate
   * for short term storage or RMI between applications running the same
   * version of Swing.  A future release of Swing will provide support for
   * long term persistence.
   */
  public static class TreeLeafIcon implements Icon, Serializable {

    Color bg;
    Color shadow;
    Color highlight;

    public TreeLeafIcon() {
      bg = UIManager.getColor("Tree.iconBackground");
      shadow = UIManager.getColor("Tree.iconShadow");
      highlight = UIManager.getColor("Tree.iconHighlight");
    }

    public void paintIcon(Component c, Graphics g, int x, int y) {
      g.setColor(bg);

      y -= 3;
      g.fillRect(x + 4, y + 7, 5, 5);

      g.drawLine(x + 6, y + 6, x + 6, y + 6);
      g.drawLine(x + 3, y + 9, x + 3, y + 9);
      g.drawLine(x + 6, y + 12, x + 6, y + 12);
      g.drawLine(x + 9, y + 9, x + 9, y + 9);

      g.setColor(highlight);
      g.drawLine(x + 2, y + 9, x + 5, y + 6);
      g.drawLine(x + 3, y + 10, x + 5, y + 12);

      g.setColor(shadow);
      g.drawLine(x + 6, y + 13, x + 10, y + 9);
      g.drawLine(x + 9, y + 8, x + 7, y + 6);
    }

    public int getIconWidth() {
      return LEAF_SIZE;
    }

    public int getIconHeight() {
      return LEAF_SIZE;
    }

  }
}
